Studies on the Synthesis of Condensed Pyridazine Derivatives. IV. Synthesis and Anxiolytic Activity of 2-Aryl-5,6-dihydro-(1)benzothiepino(5,4-c)pyridazin-3(2H)-ones and Related Compound.
作者:Tohru NAKAO、Minoru OBATA、Minoru KAWAKAMI、Kenji MORITA、Hiroshi TANAKA、Yasuto MORIMOTO、Shuzo TAKEHARA、Takashi YAKUSHIJI、Tetsuya TAHARA
DOI:10.1248/cpb.39.2556
日期:——
A series of 2-aryl-5,6-dihydro-(1)benzothiepino[5,4-c]pyridazin-3(2H)- ones and related compounds were synthesized and evaluated for their ability to displace 3H-diazepam from rat brain membranes in vitro, and to prevent bicuculline induced convulsions in mice in vivo. Compounds with a 4'-methoxyphenyl (36) or 4'-chlorophenyl group (37, 39--42) as 2-aryl substituents showed prominent activities in
合成了一系列2-芳基-5,6-二氢-(1)苯并噻吩并[5,4-c]哒嗪-3(2H)-及其相关化合物,并评价了其从大鼠脑中置换3H-地西am的能力。并在体外防止细菌性惊厥引起的惊厥。具有4'-甲氧基苯基(36)或4'-氯苯基(37,39--42)作为2-芳基取代基的化合物在体外和体内试验中均显示出显着的活性。其中,2-(4'-氯苯基)-5,6-二氢-(37)和2-(4'-氯苯基)-5,6-二氢-10-氟-(1)苯并噻吩并[5,4- c] + ++哒嗪-3(2H)-1 7-氧化物(41)在抗冲突测试(Vogel型,大鼠)中显示的活性是地西az的两倍,而肌肉松弛程度(罗塔罗德测试,小鼠)和比地西epa增加了孤立的青蛙感觉神经元中的γ-氨基丁酸诱导的氯离子电流(Icl)。从该系列中选择化合物37(Y-23684)作为进一步开发的候选物。讨论了构效关系。